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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-11 02:10:07 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-11 02:10:07 -0400 |
| commit | e14eee56c2280953c6e3d24d5dce42bd90836b81 (patch) | |
| tree | 21ab792d9ad6fbbab460058f352a0158f995644e /include/linux/rcutree.h | |
| parent | d6ee6f7e4c74d9a0fed7544f4d389bde004651d3 (diff) | |
| parent | 99adcd9d67aaf04e28f5ae96df280f236bde4b66 (diff) | |
Merge commit 'origin/master' into next
Diffstat (limited to 'include/linux/rcutree.h')
| -rw-r--r-- | include/linux/rcutree.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index d4368b7975c3..a722fb67bb2d 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h | |||
| @@ -326,4 +326,10 @@ static inline void rcu_exit_nohz(void) | |||
| 326 | } | 326 | } |
| 327 | #endif /* CONFIG_NO_HZ */ | 327 | #endif /* CONFIG_NO_HZ */ |
| 328 | 328 | ||
| 329 | /* A context switch is a grace period for rcutree. */ | ||
| 330 | static inline int rcu_blocking_is_gp(void) | ||
| 331 | { | ||
| 332 | return num_online_cpus() == 1; | ||
| 333 | } | ||
| 334 | |||
| 329 | #endif /* __LINUX_RCUTREE_H */ | 335 | #endif /* __LINUX_RCUTREE_H */ |